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Multiplexing Circuits

Discussion in 'General Electronics Discussion' started by dalvares, Nov 8, 2012.

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  1. dalvares

    dalvares

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    Nov 8, 2012
    Hi All,

    New to this forum and I hoping it can help as I have for some time been breaking my head over why this doesn't work

    I am trying to make a circuit to run and active matrix array of p-type organic transistors. I need to control the magnitude of the gate voltage (negative) apply it to 8 columns sequentially. I also need to apply a constant source drain voltage (negative) to 8 rows.

    The cicuit currently only works with a positive gate voltage (MAX664 disconnected from D).

    For some reason the ADG608N will only work with positive voltage on the signal input line not when I have the signal from the MAX664. I have VSS connected to ground and it is connected in a single supply config. Connecting in a dual supply config causes there to be some short somewhere.

    Where have I gone wrong? Can the ADG608N pass negative voltages? If not how can I reverse the polarity after?
     

    Attached Files:

  2. CDRIVE

    CDRIVE Hauling 10' pipe on a Trek Shift3

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    May 8, 2012
    What is an "organic" transistor? Does it have to be watered? :rolleyes:

    Chris
     
  3. dalvares

    dalvares

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    0
    Nov 8, 2012
  4. CDRIVE

    CDRIVE Hauling 10' pipe on a Trek Shift3

    4,960
    648
    May 8, 2012
    Damn, I have to get out more often. Greenie FETS!!

    Glad to see you solved your problem and I learned something too.

    Chris
     
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